Which AVA includes the Mokelumne River Sub AVA?

The Mokelumne River Sub AVA is located within the Lodi AVA. Recognized for its distinct grape-growing conditions, Lodi is situated in California's Central Valley and features a unique microclimate that contributes to the viticultural character of the wines produced there. The Mokelumne River itself plays a vital role in shaping the terroir by influencing the climate and soil in this sub-region, making it particularly suitable for varieties like Zinfandel and other Rhône varietals.

In the context of the other AVAs mentioned, Sierra Foothills, Happy Canyon, and Ballard Canyon are separate regions that are recognized for different climates and grape-growing characteristics. Therefore, Lodi is uniquely identified with the Mokelumne River Sub AVA, explaining why it is the correct choice in this scenario.